JLC Electromet Logo JLC Electromet Nickel Alloys Engineering Excellence
Translate:

MANUFACTURING PROCESS

At JLC, we start with the purest available raw materials to achieve the required chemical composition. A correct chemical composition is necessary to give uniform and required properties to different alloys. The alloys are Melted, Hot-Rolled and Processed to final sizes using state-of-the-art technology.

We at JLC believe in continious improvement; all processes are constantly monitored at each step using statistical process control tools to ensure the best quality of the final products. The process for making each alloy is set after a detailed exercise using concepts such as Failure Mode Effect Analysis (FEMA) and Design of Experiments (DOE)

Raw Material

  • Only virgin materials used in melting for all alloys.
  • Nickel is sourced mainly from Europe.
  • All other metals sourced from high-quality suppliers.
  • Most of the metals used are pure/electrolytic grade to ensure highest purity levels.
Melting

Melting

  • Completely integrated manufacturing facility; all alloys manufactured right from the melting stage.
  • Melting done in Electric Furnaces.
  • Capacity to melt in different batch sizes- big and small.
  • Special techniques to control oxide levels.
Melting

Preparation of Ingots

  • Pouring technique - ensures consistency and high surface quality.
  • All ingots machined to remove surface defects from the melting stage.
Hot rolling

Hot Rolling

  • Ingots pre-heated (red hot) and then hot-rolled on a rolling mill.
  • Ingots hot rolled to rods or strip form.
  • Different roll-passes for different alloys.
  • Rolling carried out at high speeds to prevent high temperature oxidation of materials.
pot annealing

Annealing

  • Hot-rolled material subjected to batch annealing in controlled atmosphere furnaces.
  • Optional cleaning of annealed material to remove the oxide layers.
  • Cleaned material then washed with water for a thoroughly clean surface.
  • Coated with a suitable lubricant carrier.
cold wire drawing

Drawing

  • Heavy gauge wire drawn to size on modern high-speed drawing blocks.
  • JLC has over 50 blocks in sets of 11, 9, 6, 5 and 3, etc.
  • Wet drawing for wire sizes below 2 mm.
cold strip rolling

Cutting

  • Wires cut in diameters from 5 mm to 0.80 mm and designed length.
  • Welding Electrode core wires -  cut in lengths of 300/350/356 mm.
  • Welding wires are cut at 1 m length; then stamped for relevant grade.
  • Cut wires available for other special applications.

Redrawing

  • Over 60 different types of wet wire drawing machines available based upon wire diameter and material.
  • Polycrystalline/natural diamond dies used to obtain bright and smooth surface quality.
  • Super fine wires up to diameters 0.05 mm also produced for special applications.
  • JLC has a well-equipped die shop for continuous maintenance of wire drawing dies.
  • In-house capability to manufacture dies.
continious annealing

Continuous Annealing

  • Continuous annealing for desired surface finish.
  • JLC has over 15 continuous annealing furnaces designed to anneal various Ni alloys.
  • All furnaces have inert atmosphere to give bright annealed wires.

Strips

  • Ni alloy strips made from melting/hot-rolling stage.
  • Cold rolled and slit to required sizes.
  • Customized width and thickness achieved.
quality control

Testing

  • All alloys produced undergo several stages of inspection.
  • Strict adherence to customer specifications.
  • In-house, well-equipped physical and chemical testing lab supports the production.
  • Testing Labs at JLC:
    • Chemical properties- by classical method as well as Spectro
    • Physical Properties - Coeff. of  thermal expansion; hardness; etc
    • Mechanical Properties - Tensile/Elongation
    • Magnetic Properties
    • EMF
    • Metallography/ Image analysis
packing

Packing & Shipping

  • Modern and well-equipped packaging department.
  • Treated and IPPC marked wooden boxes.
  • To ensure that all material is shipped defect-free and safely packaged.
  • Standard spools used as per DIN standards.
  • Thicker wires supplied in coils on pellets.
  • Specialized packaging in other forms provided as per the customer requirement.